river, central Victoria, Australia, rising in the Eastern Highlands 50 miles (80 km) northwest of Melbourne and flowing northwest and north for more than 200 miles (320 km), past Kerang, joining with the Little Murray and then with the Murray near Swan Hill. Inconstant in volume, the Loddon has been dammed for several reservoirs, including Cairn Curran and Tullaroop, to form part of the Goulburn Irrigation System. Visited (1836) by Thomas Mitchell, it is named after the Loddon River, Hampshire, England.